What is the Least Common Multiple of 64390 and 64399?

Least common multiple or lowest common denominator (lcd) can be calculated in two way; with the LCM formula calculation of greatest common factor (GCF), or multiplying the prime factors with the highest exponent factor.

Least Common Multiple of 64390 and 64399 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 64390 and 64399, than apply into the LCM equation.

GCF(64390,64399) = 1
LCM(64390,64399) = ( 64390 × 64399) / 1
LCM(64390,64399) = 4146651610 / 1
LCM(64390,64399) = 4146651610

Least Common Multiple (LCM) of 64390 and 64399 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 64390 and 64399. First we will calculate the prime factors of 64390 and 64399.

Prime Factorization of 64390

Prime Factorization of 64399

Now multiplying the highest exponent prime factors to calculate the LCM of 64390 and 64399.

LCM(64390,64399) = 2¹ × 5¹ × 47¹ × 137¹ × 64399¹
LCM(64390,64399) = 4146651610